P0112 2012 Nissan Altima Sedan Code - Intake Air Temperature Circuit Low Input
Quick Answer
The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. Common causes include Faulty Intake Air Temperature (IAT) sensor, Dirty air filter, Intake Air Temperature (IAT) sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0112 2012 Nissan Altima Sedan indicates Intake Air Temperature Circuit Low Input.
- Common causes
- Common causes include Faulty Intake Air Temperature (IAT) sensor, Dirty air filter, Intake Air Temperature (IAT) sensor harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0112 2012 Nissan Altima Sedan Description
What are the Possible Causes of the DTC P0112 2012 Nissan Altima Sedan?
- Faulty Intake Air Temperature (IAT) sensor
- Dirty air filter
- Intake Air Temperature (IAT) sensor harness is open or shorted
- Intake Air Temperature (IAT) sensor circuit poor electrical connection
How to Fix the DTC P0112 2012 Nissan Altima Sedan?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0112 2012 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0112 2012 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0112 in a 2012 Nissan Altima Sedan?
The common symptoms include poor fuel economy, rough idling, stalling, and a decrease in engine performance.
2. What does the OBDII code P0112 on a 2012 Nissan Altima Sedan indicate?
The code P0112 indicates that there is a low input signal coming from the intake air temperature (IAT) sensor circuit.
3. What are the possible causes of OBDII code P0112 in a 2012 Nissan Altima Sedan?
Possible causes include a faulty IAT sensor, damaged wiring or connectors in the IAT circuit, or issues with the engine control module (ECM).
4. How can I diagnose the OBDII code P0112 in my 2012 Nissan Altima Sedan?
Diagnosing the code involves checking the IAT sensor for proper operation, inspecting the wiring and connectors for damage, and using a scan tool to read data from the ECM.
5. Can a dirty air filter trigger the OBDII code P0112 in a 2012 Nissan Altima Sedan?
Yes, a dirty air filter can affect the IAT sensor readings and potentially trigger the P0112 code. It is recommended to check and replace the air filter if necessary.
6. Is it safe to continue driving with the OBDII code P0112 illuminated in a 2012 Nissan Altima Sedan?
It is not recommended to continue driving with the P0112 code as it can lead to poor engine performance and potential damage. It is best to address the issue promptly.
7. How can I reset the OBDII code P0112 in my 2012 Nissan Altima Sedan after making repairs?
You can reset the code using an OBDII scanner or by disconnecting the car battery for a few minutes. However, the code will likely reappear if the underlying issue is not fixed.
8. Can a DIY enthusiast repair the OBDII code P0112 in a 2012 Nissan Altima Sedan?
Depending on the cause, some DIY enthusiasts may be able to repair the issue by replacing the IAT sensor or fixing wiring problems. However, complex ECM-related issues may require professional assistance.
9. Will the OBDII code P0112 affect the emissions performance of a 2012 Nissan Altima Sedan?
Yes, the P0112 code can affect emissions performance by causing improper fuel-air mixture, which may lead to increased emissions. It is advisable to address the issue to maintain optimal emissions levels.
10. How much can I expect to pay for repairing the OBDII code P0112 in a 2012 Nissan Altima Sedan at a repair shop?
The cost of repairing the P0112 code can vary depending on the exact cause of the issue and labor rates. It is advisable to get a diagnostic assessment from a reputable repair shop for an accurate estimate.
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